There's a four-pin connector for power on that board. Only two of the pins
are used. But power and ground are also brought to the other - unused - pins.
I got a new connector, and wired up all four pins. More secure.
- Jerry, KF6VB
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On 2023-12-31 15:59, Jim Shorney wrote:
Most likely it is oxidation on the connector contacts. It is also
possible that one or more of the female contacts has lost tension for
some reason. It's easy to remove the contacts from the connector shell
and re-tension. That's one of the 5 volt regulators so take care that
you plug it back in the right way or you will have another problem.
73
-Jim
NU0C
On Sun, 31 Dec 2023 21:48:16 +0000
"Steve Wedge, W1ES/4 via groups.io" <w1es@...> wrote:
Bill, check the wires going into the crimp. If this connector has been moved a lot, you may have one conductor that's breaking from the crimp. If that's not the case, try the DeOxIt.
73,
Steve Wedge, W1ES/4
Time flies like an arrow. Fruit flies like a banana.
Sent with [Proton Mail]() secure email.
On Sunday, December 31st, 2023 at 2:04 PM, Bill via groups.io <billnopic@...> wrote:
First, I accidently posted this on a different Group. Hope that is not a terrible break in protocol.
I have owned this Drake TR7 for probably 15 years or more. I loved the radio. Even when I had to play with the DR7 board every couple of years. My dexterity is getting bad so I decided to sell it along with several peripherals.
The display is acting up again. I figured one last time. So the cover is off. UGHH. Interesting enough it appears one problem is with a small bundle of wires coming from the DR7. Using a wooden spudger I can fix or cause the problem by slightly touching the bundle. Will delve into that more later. The same display issue is caused by rotating the AUX Program switch. I am thinking about spraying some DeOxit spray into if I can reach it from the top.
My question, is that a reasonable approach to fix the switch
Thanks
Bill
W4WCS
The wire bundle in question is the one in the top right corner of DR7.
--
73
-Jim
NU0C
